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Factors to consider when selecting a Fish Finder.
from: Andrei L.Select Fish Finder that right for you!
There are four facets to a good sonar unit:
* High power transmitter.
* Efficient transducer.
* Sensitive receiver.
* High resolution/contrast display.
All of the parts of this system must be designed to work together, under any weather condition and extreme temperatures.
High transmitter power increases the probability that you will get a return echo in deep water or poor water conditions. It also lets you see fine detail, such as bait fish and structure.
The transducer must not only be able to withstand the high power from the transmitter, but it also has to convert the electrical power into sound energy with little loss in signal strength. At the other extreme, it has to be able to detect the smallest of echoes returning from deep water or tiny bait fish.
The receiver also has an extremely wide range of signals it has to deal with. It must dampen the extremely high transmit signal and amplify the small signals returning from the transducer. It also has to separate targets that are close together into distinct, separate impulses for the display.
The display must have high resolution (vertical pixels) and good contrast to be able to show all of the detail crisply and clearly. This allows fish arches and fine detail to be shown.
Factors to consider when selecting a transducer:
When trying to determine which transducer is best for you, you’ll need to consider the following variables:
* What material the transducer housing is made of, based on boat hull composition
* How the transducer should be mounted on the boat: in the hull, through the hull, or on the transom
* What you want to see displayed: depth, speed, temperature, or a combination
Composition
The first step is to determine what material the transducer should be composed of.
Find moore info at:http://www.bystore.org/select_fish_finder.html
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